Answers

Add 21/35 and 84/21

1^st number: 21/35, 2^nd number: 4 0/21

21/35 + 84/21 is 23/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 21 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 35 × 3 = 105,
   21/35 = 21 × 3/35 × 3 = 63/105
3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
   84/21 = 84 × 5/21 × 5 = 420/105
4. Add the two like fractions:
   63/105 + 420/105 = 63 + 420/105 = 483/105
5. 483/105 simplified gives 23/5
6. So, 21/35 + 84/21 = 23/5
   In mixed form: 43/5

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